src/generic/tbarsmpl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        generic/tbarsmpl.cpp
   3 // Purpose:     wxToolBarSimple
   4 // Author:      Julian Smart
   5 // Modified by: VZ on 14.12.99 during wxToolBarSimple reorganization
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "tbarsmpl.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #if wxUSE_TOOLBAR_SIMPLE
  32
  33 #ifndef WX_PRECOMP
  34     #include "wx/settings.h"
  35     #include "wx/window.h"
  36     #include "wx/dcclient.h"
  37     #include "wx/dcmemory.h"
  38 #endif
  39
  40 #include "wx/tbarsmpl.h"
  41
  42 // ----------------------------------------------------------------------------
  43 // private classes
  44 // ----------------------------------------------------------------------------
  45
  46 class WXDLLEXPORT wxToolBarToolSimple : public wxToolBarToolBase
  47 {
  48 public:
  49     wxToolBarToolSimple(wxToolBarSimple *tbar,
  50                         int id,
  51                         const wxBitmap& bitmap1,
  52                         const wxBitmap& bitmap2,
  53                         bool toggle,
  54                         wxObject *clientData,
  55                         const wxString& shortHelpString,
  56                         const wxString& longHelpString)
  57         : wxToolBarToolBase(tbar, id, bitmap1, bitmap2, toggle,
  58                             clientData, shortHelpString, longHelpString)
  59     {
  60     }
  61
  62     wxToolBarToolSimple(wxToolBarSimple *tbar, wxControl *control)
  63         : wxToolBarToolBase(tbar, control)
  64     {
  65     }
  66
  67     void SetSize(const wxSize& size)
  68     {
  69         m_width = size.x;
  70         m_height = size.y;
  71     }
  72
  73     wxCoord GetWidth() const { return m_width; }
  74     wxCoord GetHeight() const { return m_height; }
  75
  76     wxCoord               m_x;
  77     wxCoord               m_y;
  78     wxCoord               m_width;
  79     wxCoord               m_height;
  80 };
  81
  82 // ----------------------------------------------------------------------------
  83 // wxWin macros
  84 // ----------------------------------------------------------------------------
  85
  86 IMPLEMENT_DYNAMIC_CLASS(wxToolBarSimple, wxControl)
  87
  88 BEGIN_EVENT_TABLE(wxToolBarSimple, wxToolBarBase)
  89     EVT_SIZE(wxToolBarSimple::OnSize)
  90     EVT_SCROLL(wxToolBarSimple::OnScroll)
  91     EVT_PAINT(wxToolBarSimple::OnPaint)
  92     EVT_KILL_FOCUS(wxToolBarSimple::OnKillFocus)
  93     EVT_MOUSE_EVENTS(wxToolBarSimple::OnMouseEvent)
  94 END_EVENT_TABLE()
  95
  96 // ============================================================================
  97 // implementation
  98 // ============================================================================
  99
 100 // ----------------------------------------------------------------------------
 101 // tool bar tools creation
 102 // ----------------------------------------------------------------------------
 103
 104 wxToolBarToolBase *wxToolBarSimple::CreateTool(int id,
 105                                                const wxBitmap& bitmap1,
 106                                                const wxBitmap& bitmap2,
 107                                                bool toggle,
 108                                                wxObject *clientData,
 109                                                const wxString& shortHelpString,
 110                                                const wxString& longHelpString)
 111 {
 112     return new wxToolBarToolSimple(this, id, bitmap1, bitmap2, toggle,
 113                                    clientData, shortHelpString, longHelpString);
 114 }
 115
 116 wxToolBarToolBase *wxToolBarSimple::CreateTool(wxControl *control)
 117 {
 118     return new wxToolBarToolSimple(this, control);
 119 }
 120
 121 // ----------------------------------------------------------------------------
 122 // wxToolBarSimple creation
 123 // ----------------------------------------------------------------------------
 124
 125 void wxToolBarSimple::Init()
 126 {
 127     m_currentRowsOrColumns = 0;
 128
 129     m_lastX =
 130     m_lastY = 0;
 131
 132     m_maxWidth =
 133     m_maxHeight = 0;
 134
 135     m_pressedTool =
 136     m_currentTool = -1;
 137
 138     m_xPos =
 139     m_yPos = -1;
 140
 141     m_toolPacking = 1;
 142     m_toolSeparation = 5;
 143
 144     m_defaultWidth = 16;
 145     m_defaultHeight = 15;
 146
 147     m_xScrollPixelsPerLine = 1;
 148     m_yScrollPixelsPerLine = 1;
 149     m_xScrollingEnabled = FALSE;
 150     m_yScrollingEnabled = FALSE;
 151     m_xScrollPosition = 0;
 152     m_yScrollPosition = 0;
 153     m_xScrollLines = 0;
 154     m_yScrollLines = 0;
 155     m_xScrollLinesPerPage = 0;
 156     m_yScrollLinesPerPage = 0;
 157 }
 158
 159 wxToolBarToolBase *wxToolBarSimple::AddTool(int id,
 160                                             const wxBitmap& bitmap,
 161                                             const wxBitmap& pushedBitmap,
 162                                             bool toggle,
 163                                             wxCoord xPos,
 164                                             wxCoord yPos,
 165                                             wxObject *clientData,
 166                                             const wxString& helpString1,
 167                                             const wxString& helpString2)
 168 {
 169     // rememeber the position for DoInsertTool()
 170     m_xPos = xPos;
 171     m_yPos = yPos;
 172
 173     return wxToolBarBase::AddTool(id, bitmap, pushedBitmap, toggle,
 174                                   xPos, yPos, clientData,
 175                                   helpString1, helpString2);
 176 }
 177
 178 bool wxToolBarSimple::DoInsertTool(size_t WXUNUSED(pos),
 179                                    wxToolBarToolBase *toolBase)
 180 {
 181     wxToolBarToolSimple *tool = (wxToolBarToolSimple *)toolBase;
 182
 183     wxCHECK_MSG( !tool->IsControl(), FALSE,
 184                  _T("generic wxToolBarSimple doesn't support controls") );
 185
 186     tool->m_x = m_xPos;
 187     if ( tool->m_x == -1 )
 188         tool->m_x = m_xMargin;
 189
 190     tool->m_y = m_yPos;
 191     if ( tool->m_y == -1 )
 192         tool->m_y = m_yMargin;
 193
 194     tool->SetSize(GetToolSize());
 195
 196     if ( tool->IsButton() )
 197     {
 198         // Calculate reasonable max size in case Layout() not called
 199         if ((tool->m_x + tool->GetBitmap1().GetWidth() + m_xMargin) > m_maxWidth)
 200             m_maxWidth = (wxCoord)((tool->m_x + tool->GetWidth() + m_xMargin));
 201
 202         if ((tool->m_y + tool->GetBitmap1().GetHeight() + m_yMargin) > m_maxHeight)
 203             m_maxHeight = (wxCoord)((tool->m_y + tool->GetHeight() + m_yMargin));
 204     }
 205
 206     return TRUE;
 207 }
 208
 209 bool wxToolBarSimple::DoDeleteTool(size_t WXUNUSED(pos),
 210                                    wxToolBarToolBase *tool)
 211 {
 212     // VZ: didn't test whether it works, but why not...
 213     tool->Detach();
 214
 215     Refresh();
 216
 217     return TRUE;
 218 }
 219
 220 bool wxToolBarSimple::Create(wxWindow *parent,
 221                              wxWindowID id,
 222                              const wxPoint& pos,
 223                              const wxSize& size,
 224                              long style,
 225                              const wxString& name)
 226 {
 227     if ( !wxWindow::Create(parent, id, pos, size, style, name) )
 228         return FALSE;
 229
 230     // Set it to grey (or other 3D face colour)
 231     wxSystemSettings settings;
 232     SetBackgroundColour(settings.GetSystemColour(wxSYS_COLOUR_3DFACE));
 233
 234     if ( GetWindowStyleFlag() & wxTB_VERTICAL )
 235     {
 236         m_lastX = 7;
 237         m_lastY = 3;
 238
 239         m_maxRows = 32000;      // a lot
 240         m_maxCols = 1;
 241     }
 242     else
 243     {
 244         m_lastX = 3;
 245         m_lastY = 7;
 246
 247         m_maxRows = 1;
 248         m_maxCols = 32000;      // a lot
 249     }
 250
 251     SetCursor(*wxSTANDARD_CURSOR);
 252
 253     return TRUE;
 254 }
 255
 256 wxToolBarSimple::~wxToolBarSimple()
 257 {
 258 }
 259
 260 bool wxToolBarSimple::Realize()
 261 {
 262     m_currentRowsOrColumns = 0;
 263     m_lastX = m_xMargin;
 264     m_lastY = m_yMargin;
 265     m_maxWidth = 0;
 266     m_maxHeight = 0;
 267
 268     int maxToolWidth = 0;
 269     int maxToolHeight = 0;
 270
 271     // Find the maximum tool width and height
 272     wxToolBarToolsList::Node *node = m_tools.GetFirst();
 273     while ( node )
 274     {
 275         wxToolBarToolSimple *tool = (wxToolBarToolSimple *)node->GetData();
 276         if ( tool->GetWidth() > maxToolWidth )
 277             maxToolWidth = tool->GetWidth();
 278         if (tool->GetHeight() > maxToolHeight)
 279             maxToolHeight = tool->GetHeight();
 280
 281         node = node->GetNext();
 282     }
 283
 284     int separatorSize = m_toolSeparation;
 285
 286     node = m_tools.GetFirst();
 287     while ( node )
 288     {
 289         wxToolBarToolSimple *tool = (wxToolBarToolSimple *)node->GetData();
 290         if ( tool->IsSeparator() )
 291         {
 292             if ( GetWindowStyleFlag() & wxTB_HORIZONTAL )
 293             {
 294                 if (m_currentRowsOrColumns >= m_maxCols)
 295                     m_lastY += separatorSize;
 296                 else
 297                     m_lastX += separatorSize;
 298             }
 299             else
 300             {
 301                 if (m_currentRowsOrColumns >= m_maxRows)
 302                     m_lastX += separatorSize;
 303                 else
 304                     m_lastY += separatorSize;
 305             }
 306         }
 307         else if ( tool->IsButton() )
 308         {
 309             if ( GetWindowStyleFlag() & wxTB_HORIZONTAL )
 310             {
 311                 if (m_currentRowsOrColumns >= m_maxCols)
 312                 {
 313                     m_currentRowsOrColumns = 0;
 314                     m_lastX = m_xMargin;
 315                     m_lastY += maxToolHeight + m_toolPacking;
 316                 }
 317                 tool->m_x = (wxCoord)(m_lastX + (maxToolWidth - tool->GetWidth())/2.0);
 318                 tool->m_y = (wxCoord)(m_lastY + (maxToolHeight - tool->GetHeight())/2.0);
 319
 320                 m_lastX += maxToolWidth + m_toolPacking;
 321             }
 322             else
 323             {
 324                 if (m_currentRowsOrColumns >= m_maxRows)
 325                 {
 326                     m_currentRowsOrColumns = 0;
 327                     m_lastX += (maxToolWidth + m_toolPacking);
 328                     m_lastY = m_yMargin;
 329                 }
 330                 tool->m_x = (wxCoord)(m_lastX + (maxToolWidth - tool->GetWidth())/2.0);
 331                 tool->m_y = (wxCoord)(m_lastY + (maxToolHeight - tool->GetHeight())/2.0);
 332
 333                 m_lastY += maxToolHeight + m_toolPacking;
 334             }
 335             m_currentRowsOrColumns ++;
 336         }
 337         else
 338         {
 339             // TODO: support the controls
 340         }
 341
 342         if (m_lastX > m_maxWidth)
 343             m_maxWidth = m_lastX;
 344         if (m_lastY > m_maxHeight)
 345             m_maxHeight = m_lastY;
 346
 347         node = node->GetNext();
 348     }
 349
 350     if ( GetWindowStyleFlag() & wxTB_HORIZONTAL )
 351         m_maxWidth += maxToolWidth;
 352     else
 353         m_maxHeight += maxToolHeight;
 354
 355     m_maxWidth += m_xMargin;
 356     m_maxHeight += m_yMargin;
 357
 358     return TRUE;
 359 }
 360
 361 // ----------------------------------------------------------------------------
 362 // event handlers
 363 // ----------------------------------------------------------------------------
 364
 365 void wxToolBarSimple::OnPaint (wxPaintEvent& WXUNUSED(event))
 366 {
 367     wxPaintDC dc(this);
 368     PrepareDC(dc);
 369
 370     static int count = 0;
 371     // Prevent reentry of OnPaint which would cause wxMemoryDC errors.
 372     if ( count > 0 )
 373         return;
 374     count++;
 375
 376     for ( wxToolBarToolsList::Node *node = m_tools.GetFirst();
 377           node;
 378           node = node->GetNext() )
 379     {
 380         wxToolBarToolBase *tool = node->GetData();
 381         if ( tool->IsButton() )
 382             DrawTool(dc, tool);
 383     }
 384
 385     count--;
 386 }
 387
 388 void wxToolBarSimple::OnSize (wxSizeEvent& WXUNUSED(event))
 389 {
 390 #if wxUSE_CONSTRAINTS
 391     if (GetAutoLayout())
 392         Layout();
 393 #endif
 394
 395     AdjustScrollbars();
 396 }
 397
 398 void wxToolBarSimple::OnKillFocus(wxFocusEvent& WXUNUSED(event))
 399 {
 400     OnMouseEnter(m_pressedTool = m_currentTool = -1);
 401 }
 402
 403 void wxToolBarSimple::OnMouseEvent(wxMouseEvent & event)
 404 {
 405     wxCoord x, y;
 406     event.GetPosition(&x, &y);
 407     wxToolBarToolSimple *tool = (wxToolBarToolSimple *)FindToolForPosition(x, y);
 408
 409     if (event.LeftDown())
 410     {
 411         CaptureMouse();
 412     }
 413     if (event.LeftUp())
 414     {
 415         ReleaseMouse();
 416     }
 417
 418     if (!tool)
 419     {
 420         if (m_currentTool > -1)
 421         {
 422             if (event.LeftIsDown())
 423                 SpringUpButton(m_currentTool);
 424             m_currentTool = -1;
 425             OnMouseEnter(-1);
 426         }
 427         return;
 428     }
 429
 430     if (!event.IsButton())
 431     {
 432         if ( tool->GetId() != m_currentTool )
 433         {
 434             // If the left button is kept down and moved over buttons,
 435             // press those buttons.
 436             if ( event.LeftIsDown() && tool->IsEnabled() )
 437             {
 438                 SpringUpButton(m_currentTool);
 439
 440                 if ( tool->CanBeToggled() )
 441                 {
 442                     tool->Toggle();
 443                 }
 444
 445                 DrawTool(tool);
 446             }
 447
 448             m_currentTool = tool->GetId();
 449             OnMouseEnter(m_currentTool);
 450         }
 451         return;
 452     }
 453
 454     // Left button pressed.
 455     if ( event.LeftDown() && tool->IsEnabled() )
 456     {
 457         if ( tool->CanBeToggled() )
 458         {
 459             tool->Toggle();
 460         }
 461
 462         DrawTool(tool);
 463     }
 464     else if (event.RightDown())
 465     {
 466         OnRightClick(tool->GetId(), x, y);
 467     }
 468
 469     // Left Button Released.  Only this action confirms selection.
 470     // If the button is enabled and it is not a toggle tool and it is
 471     // in the pressed state, then raise the button and call OnLeftClick.
 472     //
 473     if ( event.LeftUp() && tool->IsEnabled() )
 474     {
 475         // Pass the OnLeftClick event to tool
 476         if ( !OnLeftClick(tool->GetId(), tool->IsToggled()) &&
 477                           tool->CanBeToggled() )
 478         {
 479             // If it was a toggle, and OnLeftClick says No Toggle allowed,
 480             // then change it back
 481             tool->Toggle();
 482         }
 483
 484         DrawTool(tool);
 485     }
 486 }
 487
 488 // ----------------------------------------------------------------------------
 489 // drawing
 490 // ----------------------------------------------------------------------------
 491
 492 void wxToolBarSimple::DrawTool(wxToolBarToolBase *tool)
 493 {
 494     wxClientDC dc(this);
 495     DrawTool(dc, tool);
 496 }
 497
 498 void wxToolBarSimple::DrawTool(wxDC& dc, wxToolBarToolBase *toolBase)
 499 {
 500     wxToolBarToolSimple *tool = (wxToolBarToolSimple *)toolBase;
 501
 502     wxMemoryDC memDC;
 503     PrepareDC(dc);
 504
 505     wxPen dark_grey_pen(wxColour( 85,85,85 ), 1, wxSOLID);
 506     wxPen white_pen("WHITE", 1, wxSOLID);
 507     wxPen black_pen("BLACK", 1, wxSOLID);
 508
 509     wxBitmap bitmap = tool->GetBitmap();
 510
 511     if ( bitmap.Ok() )
 512     {
 513 #ifndef __WXGTK__
 514         if (bitmap.GetPalette())
 515             memDC.SetPalette(*bitmap.GetPalette());
 516 #endif
 517
 518         int ax = (int)tool->m_x,
 519         ay = (int)tool->m_y,
 520         bx = (int)(tool->m_x+tool->GetWidth()),
 521         by = (int)(tool->m_y+tool->GetHeight());
 522
 523         memDC.SelectObject(bitmap);
 524         if (m_windowStyle & wxTB_3DBUTTONS)
 525         {
 526             dc.SetClippingRegion(ax, ay, (bx-ax+1), (by-ay+1));
 527             dc.Blit((ax+1), (ay+1), (bx-ax-2), (by-ay-2), &memDC, 0, 0);
 528             wxPen * old_pen = & dc.GetPen();
 529             dc.SetPen( white_pen );
 530             dc.DrawLine(ax,(by-1),ax,ay);
 531             dc.DrawLine(ax,ay,(bx-1),ay);
 532             dc.SetPen( dark_grey_pen );
 533             dc.DrawLine((bx-1),(ay+1),(bx-1),(by-1));
 534             dc.DrawLine((bx-1),(by-1),(ax+1),(by-1));
 535             dc.SetPen( black_pen );
 536             dc.DrawLine(bx,ay,bx,by);
 537             dc.DrawLine(bx,by,ax,by);
 538             dc.SetPen( *old_pen );
 539             dc.DestroyClippingRegion();
 540             // Select bitmap out of the DC
 541         }
 542         else
 543         {
 544             dc.Blit(tool->m_x, tool->m_y,
 545                     bitmap.GetWidth(), bitmap.GetHeight(),
 546                     &memDC, 0, 0);
 547         }
 548         memDC.SelectObject(wxNullBitmap);
 549 #ifndef __WXGTK__
 550         memDC.SetPalette(wxNullPalette);
 551 #endif
 552     }
 553     // No second bitmap, so draw a thick line around bitmap, or invert if mono
 554     else if ( tool->IsToggled() )
 555     {
 556         bool drawBorder = FALSE;
 557 #ifdef __X__ // X doesn't invert properly on colour
 558         drawBorder = wxColourDisplay();
 559 #else       // Inversion works fine under Windows
 560         drawBorder = FALSE;
 561 #endif
 562
 563         if (!drawBorder)
 564         {
 565             memDC.SelectObject(tool->GetBitmap1());
 566             dc.Blit(tool->m_x, tool->m_y, tool->GetWidth(), tool->GetHeight(),
 567                     &memDC, 0, 0, wxSRC_INVERT);
 568             memDC.SelectObject(wxNullBitmap);
 569         }
 570         else
 571         {
 572             bitmap = tool->GetBitmap1();
 573
 574             if (m_windowStyle & wxTB_3DBUTTONS)
 575             {
 576                 int ax = (int)tool->m_x,
 577                 ay = (int)tool->m_y,
 578                 bx = (int)(tool->m_x+tool->GetWidth()),
 579                 by = (int)(tool->m_y+tool->GetHeight());
 580
 581                 memDC.SelectObject(bitmap);
 582                 dc.SetClippingRegion(ax, ay, (bx-ax+1), (by-ay+1));
 583                 dc.Blit((ax+2), (ay+2), (bx-ax-2), (by-ay-2), &memDC, 0, 0);
 584                 wxPen * old_pen = & dc.GetPen();
 585                 dc.SetPen( black_pen );
 586                 dc.DrawLine(ax,(by-1),ax,ay);
 587                 dc.DrawLine(ax,ay,(bx-1),ay);
 588                 dc.SetPen( dark_grey_pen );
 589                 dc.DrawLine((ax+1),(by-2),(ax+1),(ay+1));
 590                 dc.DrawLine((ax+1),(ay+1),(bx-2),(ay+1));
 591                 dc.SetPen( white_pen );
 592                 dc.DrawLine(bx,ay,bx,by);
 593                 dc.DrawLine(bx,by,ax,by);
 594                 dc.SetPen( *old_pen );
 595                 dc.DestroyClippingRegion();
 596                 memDC.SelectObject(wxNullBitmap);
 597             }
 598             else
 599             {
 600                 wxCoord x = tool->m_x;
 601                 wxCoord y = tool->m_y;
 602                 wxCoord w = bitmap.GetWidth();
 603                 wxCoord h = bitmap.GetHeight();
 604                 wxPen thick_black_pen("BLACK", 3, wxSOLID);
 605
 606                 memDC.SelectObject(bitmap);
 607                 dc.SetClippingRegion(tool->m_x, tool->m_y, w, h);
 608                 dc.Blit(tool->m_x, tool->m_y, w, h,
 609                         &memDC, 0, 0);
 610                 dc.SetPen(thick_black_pen);
 611                 dc.SetBrush(*wxTRANSPARENT_BRUSH);
 612                 dc.DrawRectangle(x, y, w-1, h-1);
 613                 dc.DestroyClippingRegion();
 614                 memDC.SelectObject(wxNullBitmap);
 615             }
 616         }
 617     }
 618 }
 619
 620 // ----------------------------------------------------------------------------
 621 // toolbar geometry
 622 // ----------------------------------------------------------------------------
 623
 624 void wxToolBarSimple::SetRows(int nRows)
 625 {
 626     wxCHECK_RET( nRows != 0, _T("max number of rows must be > 0") );
 627
 628     m_maxCols = (GetToolsCount() + nRows - 1) / nRows;
 629
 630     AdjustScrollbars();
 631     Refresh();
 632 }
 633
 634 wxToolBarToolBase *wxToolBarSimple::FindToolForPosition(wxCoord x,
 635                                                         wxCoord y) const
 636 {
 637     wxToolBarToolsList::Node *node = m_tools.GetFirst();
 638     while (node)
 639     {
 640         wxToolBarToolSimple *tool = (wxToolBarToolSimple *)node->GetData();
 641         if ((x >= tool->m_x) && (y >= tool->m_y) &&
 642             (x <= (tool->m_x + tool->GetWidth())) &&
 643             (y <= (tool->m_y + tool->GetHeight())))
 644         {
 645             return tool;
 646         }
 647
 648         node = node->GetNext();
 649     }
 650
 651     return (wxToolBarToolBase *)NULL;
 652 }
 653
 654 // ----------------------------------------------------------------------------
 655 // tool state change handlers
 656 // ----------------------------------------------------------------------------
 657
 658 void wxToolBarSimple::DoEnableTool(wxToolBarToolBase *tool,
 659                                    bool WXUNUSED(enable))
 660 {
 661     DrawTool(tool);
 662 }
 663
 664 void wxToolBarSimple::DoToggleTool(wxToolBarToolBase *tool,
 665                                    bool WXUNUSED(toggle))
 666 {
 667     DrawTool(tool);
 668 }
 669
 670 void wxToolBarSimple::DoSetToggle(wxToolBarToolBase * WXUNUSED(tool),
 671                                   bool WXUNUSED(toggle))
 672 {
 673     // nothing to do
 674 }
 675
 676 // Okay, so we've left the tool we're in ... we must check if the tool we're
 677 // leaving was a 'sprung push button' and if so, spring it back to the up
 678 // state.
 679 void wxToolBarSimple::SpringUpButton(int id)
 680 {
 681     wxToolBarToolBase *tool = FindById(id);
 682
 683     if ( tool && tool->CanBeToggled() )
 684     {
 685         tool->Toggle();
 686
 687         DrawTool(tool);
 688     }
 689 }
 690
 691 // ----------------------------------------------------------------------------
 692 // scrolling implementation
 693 // ----------------------------------------------------------------------------
 694
 695 /*
 696  * pixelsPerUnitX/pixelsPerUnitY: number of pixels per unit (e.g. pixels per text line)
 697  * noUnitsX/noUnitsY:        : no. units per scrollbar
 698  */
 699 void wxToolBarSimple::SetScrollbars (int pixelsPerUnitX, int pixelsPerUnitY,
 700                                    int noUnitsX, int noUnitsY,
 701                                    int xPos, int yPos)
 702 {
 703     m_xScrollPixelsPerLine = pixelsPerUnitX;
 704     m_yScrollPixelsPerLine = pixelsPerUnitY;
 705     m_xScrollLines = noUnitsX;
 706     m_yScrollLines = noUnitsY;
 707
 708     int w, h;
 709     GetSize(&w, &h);
 710
 711     // Recalculate scroll bar range and position
 712     if (m_xScrollLines > 0)
 713     {
 714         m_xScrollPosition = xPos;
 715         SetScrollPos (wxHORIZONTAL, m_xScrollPosition, TRUE);
 716     }
 717     else
 718     {
 719         SetScrollbar(wxHORIZONTAL, 0, 0, 0, FALSE);
 720         m_xScrollPosition = 0;
 721     }
 722
 723     if (m_yScrollLines > 0)
 724     {
 725         m_yScrollPosition = yPos;
 726         SetScrollPos (wxVERTICAL, m_yScrollPosition, TRUE);
 727     }
 728     else
 729     {
 730         SetScrollbar(wxVERTICAL, 0, 0, 0, FALSE);
 731         m_yScrollPosition = 0;
 732     }
 733     AdjustScrollbars();
 734     Refresh();
 735
 736 #if 0 //def __WXMSW__
 737     ::UpdateWindow ((HWND) GetHWND());
 738 #endif
 739 }
 740
 741 void wxToolBarSimple::OnScroll(wxScrollEvent& event)
 742 {
 743     int orient = event.GetOrientation();
 744
 745     int nScrollInc = CalcScrollInc(event);
 746     if (nScrollInc == 0)
 747         return;
 748
 749     if (orient == wxHORIZONTAL)
 750     {
 751         int newPos = m_xScrollPosition + nScrollInc;
 752         SetScrollPos(wxHORIZONTAL, newPos, TRUE );
 753     }
 754     else
 755     {
 756         int newPos = m_yScrollPosition + nScrollInc;
 757         SetScrollPos(wxVERTICAL, newPos, TRUE );
 758     }
 759
 760     if (orient == wxHORIZONTAL)
 761     {
 762         if (m_xScrollingEnabled)
 763             ScrollWindow(-m_xScrollPixelsPerLine * nScrollInc, 0, NULL);
 764         else
 765             Refresh();
 766     }
 767     else
 768     {
 769         if (m_yScrollingEnabled)
 770             ScrollWindow(0, -m_yScrollPixelsPerLine * nScrollInc, NULL);
 771         else
 772             Refresh();
 773     }
 774
 775     if (orient == wxHORIZONTAL)
 776     {
 777         m_xScrollPosition += nScrollInc;
 778     }
 779     else
 780     {
 781         m_yScrollPosition += nScrollInc;
 782     }
 783
 784 }
 785
 786 int wxToolBarSimple::CalcScrollInc(wxScrollEvent& event)
 787 {
 788     int pos = event.GetPosition();
 789     int orient = event.GetOrientation();
 790
 791     int nScrollInc = 0;
 792     switch (event.GetEventType())
 793     {
 794         case wxEVT_SCROLL_TOP:
 795             {
 796                 if (orient == wxHORIZONTAL)
 797                     nScrollInc = - m_xScrollPosition;
 798                 else
 799                     nScrollInc = - m_yScrollPosition;
 800                 break;
 801             }
 802         case wxEVT_SCROLL_BOTTOM:
 803             {
 804                 if (orient == wxHORIZONTAL)
 805                     nScrollInc = m_xScrollLines - m_xScrollPosition;
 806                 else
 807                     nScrollInc = m_yScrollLines - m_yScrollPosition;
 808                 break;
 809             }
 810         case wxEVT_SCROLL_LINEUP:
 811             {
 812                 nScrollInc = -1;
 813                 break;
 814             }
 815         case wxEVT_SCROLL_LINEDOWN:
 816             {
 817                 nScrollInc = 1;
 818                 break;
 819             }
 820         case wxEVT_SCROLL_PAGEUP:
 821             {
 822                 if (orient == wxHORIZONTAL)
 823                     nScrollInc = -GetScrollPageSize(wxHORIZONTAL);
 824                 else
 825                     nScrollInc = -GetScrollPageSize(wxVERTICAL);
 826                 break;
 827             }
 828         case wxEVT_SCROLL_PAGEDOWN:
 829             {
 830                 if (orient == wxHORIZONTAL)
 831                     nScrollInc = GetScrollPageSize(wxHORIZONTAL);
 832                 else
 833                     nScrollInc = GetScrollPageSize(wxVERTICAL);
 834                 break;
 835             }
 836         case wxEVT_SCROLL_THUMBTRACK:
 837             {
 838                 if (orient == wxHORIZONTAL)
 839                     nScrollInc = pos - m_xScrollPosition;
 840                 else
 841                     nScrollInc = pos - m_yScrollPosition;
 842                 break;
 843             }
 844         default:
 845             {
 846                 break;
 847             }
 848     }
 849     if (orient == wxHORIZONTAL)
 850     {
 851         int w, h;
 852         GetClientSize(&w, &h);
 853
 854         int nMaxWidth = m_xScrollLines*m_xScrollPixelsPerLine;
 855         int noPositions = (int) ( ((nMaxWidth - w)/(float)m_xScrollPixelsPerLine) + 0.5 );
 856         if (noPositions < 0)
 857             noPositions = 0;
 858
 859         if ( (m_xScrollPosition + nScrollInc) < 0 )
 860             nScrollInc = -m_xScrollPosition; // As -ve as we can go
 861         else if ( (m_xScrollPosition + nScrollInc) > noPositions )
 862             nScrollInc = noPositions - m_xScrollPosition; // As +ve as we can go
 863
 864         return nScrollInc;
 865     }
 866     else
 867     {
 868         int w, h;
 869         GetClientSize(&w, &h);
 870
 871         int nMaxHeight = m_yScrollLines*m_yScrollPixelsPerLine;
 872         int noPositions = (int) ( ((nMaxHeight - h)/(float)m_yScrollPixelsPerLine) + 0.5 );
 873         if (noPositions < 0)
 874             noPositions = 0;
 875
 876         if ( (m_yScrollPosition + nScrollInc) < 0 )
 877             nScrollInc = -m_yScrollPosition; // As -ve as we can go
 878         else if ( (m_yScrollPosition + nScrollInc) > noPositions )
 879             nScrollInc = noPositions - m_yScrollPosition; // As +ve as we can go
 880
 881         return nScrollInc;
 882     }
 883 }
 884
 885 // Adjust the scrollbars - new version.
 886 void wxToolBarSimple::AdjustScrollbars()
 887 {
 888     int w, h;
 889     GetClientSize(&w, &h);
 890
 891     // Recalculate scroll bar range and position
 892     if (m_xScrollLines > 0)
 893     {
 894         int nMaxWidth = m_xScrollLines*m_xScrollPixelsPerLine;
 895         int newRange = (int) ( ((nMaxWidth)/(float)m_xScrollPixelsPerLine) + 0.5 );
 896         if (newRange < 0)
 897             newRange = 0;
 898
 899         m_xScrollPosition = wxMin(newRange, m_xScrollPosition);
 900
 901         // Calculate page size i.e. number of scroll units you get on the
 902         // current client window
 903         int noPagePositions = (int) ( (w/(float)m_xScrollPixelsPerLine) + 0.5 );
 904         if (noPagePositions < 1)
 905             noPagePositions = 1;
 906
 907         SetScrollbar(wxHORIZONTAL, m_xScrollPosition, noPagePositions, newRange);
 908         SetScrollPageSize(wxHORIZONTAL, noPagePositions);
 909     }
 910     if (m_yScrollLines > 0)
 911     {
 912         int nMaxHeight = m_yScrollLines*m_yScrollPixelsPerLine;
 913         int newRange = (int) ( ((nMaxHeight)/(float)m_yScrollPixelsPerLine) + 0.5 );
 914         if (newRange < 0)
 915             newRange = 0;
 916
 917         m_yScrollPosition = wxMin(newRange, m_yScrollPosition);
 918
 919         // Calculate page size i.e. number of scroll units you get on the
 920         // current client window
 921         int noPagePositions = (int) ( (h/(float)m_yScrollPixelsPerLine) + 0.5 );
 922         if (noPagePositions < 1)
 923             noPagePositions = 1;
 924
 925         SetScrollbar(wxVERTICAL, m_yScrollPosition, noPagePositions, newRange);
 926         SetScrollPageSize(wxVERTICAL, noPagePositions);
 927     }
 928 }
 929
 930 // Prepare the DC by translating it according to the current scroll position
 931 void wxToolBarSimple::PrepareDC(wxDC& dc)
 932 {
 933     dc.SetDeviceOrigin(- m_xScrollPosition * m_xScrollPixelsPerLine, - m_yScrollPosition * m_yScrollPixelsPerLine);
 934 }
 935
 936 void wxToolBarSimple::GetScrollPixelsPerUnit (int *x_unit, int *y_unit) const
 937 {
 938       *x_unit = m_xScrollPixelsPerLine;
 939       *y_unit = m_yScrollPixelsPerLine;
 940 }
 941
 942 int wxToolBarSimple::GetScrollPageSize(int orient) const
 943 {
 944     if ( orient == wxHORIZONTAL )
 945         return m_xScrollLinesPerPage;
 946     else
 947         return m_yScrollLinesPerPage;
 948 }
 949
 950 void wxToolBarSimple::SetScrollPageSize(int orient, int pageSize)
 951 {
 952     if ( orient == wxHORIZONTAL )
 953         m_xScrollLinesPerPage = pageSize;
 954     else
 955         m_yScrollLinesPerPage = pageSize;
 956 }
 957
 958 /*
 959  * Scroll to given position (scroll position, not pixel position)
 960  */
 961 void wxToolBarSimple::Scroll (int x_pos, int y_pos)
 962 {
 963     int old_x, old_y;
 964     ViewStart (&old_x, &old_y);
 965     if (((x_pos == -1) || (x_pos == old_x)) && ((y_pos == -1) || (y_pos == old_y)))
 966         return;
 967
 968     if (x_pos > -1)
 969     {
 970         m_xScrollPosition = x_pos;
 971         SetScrollPos (wxHORIZONTAL, x_pos, TRUE);
 972     }
 973     if (y_pos > -1)
 974     {
 975         m_yScrollPosition = y_pos;
 976         SetScrollPos (wxVERTICAL, y_pos, TRUE);
 977     }
 978     Refresh();
 979
 980 #if 0 //def __WXMSW__
 981     UpdateWindow ((HWND) GetHWND());
 982 #endif
 983 }
 984
 985 void wxToolBarSimple::EnableScrolling (bool x_scroll, bool y_scroll)
 986 {
 987     m_xScrollingEnabled = x_scroll;
 988     m_yScrollingEnabled = y_scroll;
 989 }
 990
 991 void wxToolBarSimple::GetVirtualSize (int *x, int *y) const
 992 {
 993     *x = m_xScrollPixelsPerLine * m_xScrollLines;
 994     *y = m_yScrollPixelsPerLine * m_yScrollLines;
 995 }
 996
 997 // Where the current view starts from
 998 void wxToolBarSimple::ViewStart (int *x, int *y) const
 999 {
1000     *x = m_xScrollPosition;
1001     *y = m_yScrollPosition;
1002 }
1003
1004 #endif // wxUSE_TOOLBAR_SIMPLE